title: WHO warns that avian flu could still be in the environment.
mesh_terms: D000818:Animals; D001717:Birds; D002335:Carnivora; D002371:Cat Diseases / Q000453:epidemiology; D002415:Cats; D014943:Global Health; D005585:Influenza in Birds / Q000453:epidemiology*; D011200:Poultry; D014944:World Health Organization